U.S. Army Signal Corps. Conference of President Franklin D. Roosevelt, Marshal Josef Stalin and Prime Minister Winston Churchill . . . , 1943.Roosevelt, Churchill and Stalin met for the first time at Teheran, Iran, from November 28 to December 1, 1943. At the conference, Stalin finally forced the issue of the Second Front. Accusing Churchill of not backing the cross-Channel attack, now code-named OVERLORD, he prodded the Anglo-Americans to take a firm and final stand by naming a supreme commander for the operation. Roosevelt selected U.S. General Dwight Eisenhower, allowing overall command in the Mediterranean to pass into British hands.